Siemens SINUMERIK 840D sl Function Manual page 599

16965 Channel %1 SAFE.SPF run-up not completed
Parameter %1 = channel number
Explanation The alarm is initiated if the safety program /N_CST_DIR/N_SAFE_SPF should be executed when booting
and was not completed after four times the time, which is defined in MD $MN_SPL_START_TIMEOUT. One
reason could be an extremely long execution time of SAFE.SPF. The channel number specifies which channel
is the cause of the error.
Response Alarm display
NC not ready
NC start disable in this channel
Mode group not ready
Interface signals are set
NC stop for alarm
Remedy Increase MD $MN_SAFE_SPL_START_TIMEOUT
Program con‐ Clear the alarm with the RESET key. Restart the part program.
tinuation
20095 Axis %1 illegal holding torque, measured torque %2
Parameter %1 = axis name, spindle number
%2 = measured holding torque when selecting the brake test
Explanation The actually measured holding torque cannot be provided with the existing parameterization of the brake test.
Response Alarm display
The function test of the mechanical brake system is aborted
The PLC block FB11 for the sequence control to test the mechanical brake system is exited with a fault (fault
detection = 2). This means that the request - "start brake test" - is not even effective for the axis.
Remedy Check the actual parameterization of the function test of the mechanical braking system:
● The torque due to weight in drive parameter p1532 should be as far as possible equal to the currently
measured holding torque. The measured holding torque is displayed in this alarm.
● The holding torque for the brake test in MD $MA_SAFE_BRAKETEST_TORQUE must be parameterized
higher than the currently set holding torque.
Program con‐ Clear the alarm with the Clear key or with NC-START.
tinuation
Safety Integrated
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
11.2 NCK safety alarms for SINUMERIK 840D sl
Diagnostics
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